Yes — acrobat.com has IPv6.

Has both IPv4 (A) and IPv6 (AAAA) addresses.

IPv6 readiness

Works over IPv6, with one gap: its mail servers lack IPv6.

Website over IPv6 acrobat.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2600:1408:c400:11::17cd:6b4e answers · 443✓ 2600:1408:c400:11::17cd:6b5a answers · 443	yes
www over IPv6 www.acrobat.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2600:1408:c400:11::17cd:6b4e answers · 443✓ 2600:1408:c400:11::17cd:6b5a answers · 443	yes
Mail servers (MX) have IPv6 None of the mail servers has an AAAA record. acrobat-com.mail.protection.outlook.com ✗adobe.mail.protection.outlook.com ✗	no
Nameservers have IPv6 6 of 6 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. a7-64.akam.net ✓a26-66.akam.net ✓a13-65.akam.net ✓a28-67.akam.net ✓a1-217.akam.net ✓a10-64.akam.net ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.

https://acrobat.com/ via 2600:1408:c400:11::17cd:6b4e → 301https://acrobat.adobe.com/?x_api_client_id=acrobat_com via 2600:1408:c400:11::17cd:6b45 → 200

works

What's keeping acrobat.com from an A

Mail servers without IPv6
acrobat-com.mail.protection.outlook.com, adobe.mail.protection.outlook.com have no AAAA record, so mail from IPv6-only servers can't reach them directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

acrobat.com Has IPv6

A (IPv4)	23.205.107.90 23.205.107.78
AAAA (IPv6)	2600:1408:c400:11::17cd:6b4e 2600:1408:c400:11::17cd:6b5a

www.acrobat.com Has IPv6

Alias of	acrobat.com
A (IPv4)	23.212.249.83 23.212.249.77
AAAA (IPv6)	2600:1408:c400:11::17cd:6b4e 2600:1408:c400:11::17cd:6b5a

Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).

Copy the evidence — a citation-ready record of this measurement

IPv6 measurement: acrobat.com
Measured 2026-11-01 06:44:55 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    23.205.107.90, 23.205.107.78
AAAA (IPv6): 2600:1408:c400:11::17cd:6b4e, 2600:1408:c400:11::17cd:6b5a
www AAAA:    2600:1408:c400:11::17cd:6b4e, 2600:1408:c400:11::17cd:6b5a

Readiness grade B: Works over IPv6, with one gap: its mail servers lack IPv6.
- Website over IPv6: acrobat.com has 2 IPv6 addresses and answers on every one we tested.
    2600:1408:c400:11::17cd:6b4e: answers (TCP 443)
    2600:1408:c400:11::17cd:6b5a: answers (TCP 443)
- www over IPv6: www.acrobat.com has 2 IPv6 addresses and answers on every one we tested.
    2600:1408:c400:11::17cd:6b4e: answers (TCP 443)
    2600:1408:c400:11::17cd:6b5a: answers (TCP 443)
- Mail servers (MX) have IPv6: None of the mail servers has an AAAA record.
- Nameservers have IPv6: 6 of 6 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.

Reachability = a TCP connection opened on port 443 (or 80).

HTTPS over IPv6 (not graded): Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.
    https://acrobat.com/ via 2600:1408:c400:11::17cd:6b4e -> HTTP 301, certificate: valid
    https://acrobat.adobe.com/?x_api_client_id=acrobat_com via 2600:1408:c400:11::17cd:6b45 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/228KwkTKtg

Permanent link: aaaa.bot/r/228KwkTKtg · How we measure

Checked 2026-11-01 06:44:55 UTC. Full DNS report: dns.pizza/domain/acrobat.com · JSON: /api/v1/acrobat.com